1. Mash avocado in a medium bowl until almost smooth. Stir in tomato, along with pepper and salt.
2. If using veggie patties, toast until hot in center, and slice thinly.
3. Lay out lettuce leaves and spread avocado-tomato mixture through the center of each leaf. Sprinkle some soy nuts on each leaf, and begin stacking spinach and mushrooms.
4. Add 1/2 sliced veggie patty per wrap, if using. Roll lettuce leaves around the center mass and enjoy!